Machine for cutting tenons



, Model) 3 Sheets-Sheet 1.

I A. HENDEY.

MACHINE FOR CUTTING TENONS:

No. 416,608 Patented De0.'3, 1889.

4 f] W/T/VESSES: INVFNTOR ATTORNEY (No Model.) 3 Sheets-Sheet 2.

A. HENDEY. MACHINE FOR- CUTTING TENONS.

No. 416,608. Patented Dec. 8, 1889.

8 8 8 WITNESSES: Q I wvmm .mz/d M ML W ATTORNEY N4 PETERS, Fhalo-Lilhcgaphor, Walhingmn, D.C.

3 Sheets-Sheet 3.

(No ModeL) A HENDEY MACHINE POE CUTTING T'BNONS.

No. 416,608. PatentedDec. 3, 1889.

INVENTO/i' A TT OHNE Y UNIT D STATES PATENT OFFICE.

ARTHUR HENDEY, OF DENVER, COLORADO.

MACHINE FOR CUTTING I'ENON S.

SPECIFICATION forming part of Letters Patent No. 416,608, dated December3, 1889.

Application filed October 16, 1888. Serial No. 288,247.' (No model.)

To all whom it may concern:

Be it known that I, ARTHUR HENDEY, a citizen of the United States,residing at Denver,

in the county of Arapahoe and State of 0010- rado, have invented certainnew and useful Improvements in Machines for Cutting Tenons; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to machines for cutting tenons on either round,square, or other timber for use in mines.

For timbering shafts and slopes in mines round timbers answer asatisfactory purpose, provided the tenons on the opposite ends of suchtimbers are in line with each other and the shoulders of such tenons areparallel.

- The object of my invention is the production of a machine adapted tosimultaneously cut tenons on the opposite ends of timber and having thecapacity for ready adjustment of the diiferent parts, whereby themachine is adapted forcutting tenons on timbers of varying sizes andlengths.

The invention, as shown, is duplex in character-that is to say, there isa tenon-sawing machine or gang of saws at both ends of the machine, forthe purpose of multiplying the capacity of the machinesaving a handlingof the timber to bring both ends within the range of one set of saws,and for the main purpose of more certainly securing the alignment of thetenons on the opposite ends.

' The invention consists, essentially, in the means for adjusting thedifferent parts of the machine to and from each other, which will behereinafter particularly described, and pointed out in the claims.

In the drawings, Figure 1 is a view showing the ground plan orhorizontal arrangement of the mechanism. Fig. 2 is a side elevation,looking from the feed side of the-machine.

Fig. 3 is an end elevation of the machine' Figs. 4 and 5 are enlargedviews of the headblock and log clamping or gripping device. Figs. 6 and7 are section and elevation, respectively, of a spring-catch for lockingthe angle-block to the carriage.

A is the bed-plate or frame of the machine secured to base-timbers orframe work in any suitable substantial way. Fixedly mounted at one endof the bed-plate A and adj ustably mounted near the other end aretenon-sawing machines or gangs of saws, each machine or gang having sawsarranged in pairs, the pairs being arranged at right angles with eachother, one to cut the sides and the'other to cut the shoulders of atenon.

G C are ways or tracks arranged at right angles with and above thebed-plate A of the machine. The movable sawing machine or gang isconnected with the track or way C,

and both are adjustable toward or from the fixed trackand machine toprovide for varying lengths of timbers by means of a rack c and pinion cor other equivalent mechanism. The tracks or ways C and O are groovedand slotted beams, substantially as shown in Figs. 1 and 4. In thegrooves of the tracks there are mounted traversing carriages D D,consisting of flanged or headed bases (1 d and risers d d. (Shown inFigs. 2, 4, and The flanged heads 0. fit in corresponding grooves in thetracks, and connected therewith is a rack-bar d as shown. The upperedges of the risers d d are concaved to form saddles or seats foroscillating crescent-shaped logholders, which, in connection with theirsupporting-carriages D D, correspond in function with'the head-block ofa saw-mill.

The log adjusters or holders have crescentshaped parts E fitting in thesaddle of the carriages D. Each of the angle-blocks hasa pair of dogs ee pivoted thereto for gripping and securing thelog in the angle of thesame, as seen in Figs. 3 and 5. The part E has formed therein aconcentric groove, into which a stud 8 projects for holding it in itssaddle. Said part E is also provided with perforations or recesses, anda spring-stop H (shown in Figs. 6 and 7) interlocks therewith the tenonsare mounted on arbors carried by a frame F, which is itself pivoted andadjustably clamped in pillars G, as particularly shown in Fig. Thesesaws, mounted as shown, are readily adjustable by swinging theircarrying-frames F to bring their edges more or less distant from eachother. Saws h h, for cutting the sides of the tenon, are also adjustedby removable collars in a wellknown way, a complete set being providedto cut from one to twelve inch tenons.

e is an angular bolster applied to the angleblock to provide forbringing the center of logs of different diameters approximately to thecenter of the arc of the log adjuster or holder. For small logs a seriesof these bolstersone outside the other-may be used, or a series ofbolsters of diiferent dimensions may be used.

1 is a hand-wheel attached to a shaft extending across the machine. Theshaft carries pinions which intergear directly with rack-teeth beneaththe traversing carriages or with pinions C The carriages D D are thustraversed to move the log past the saws and back again.

In operation the movable gang of saws and movable track are firstadjusted on the main bed-plate or frame of the machine to the length ofthe timber to be tenoned. A log is then adjusted and dogged in theangle-blocks. The log is now passed through the saws and back, and thesides and shoulders of a tenon are cut on both ends of the log. Thespring catch or stop is now pulled out and held by a quarter-turn of thehandle. The log, together with the angle-block, is now rolled slightly,the spring-catch released, and the rolling is continued until the stopsnaps into place to lock the angle-block in the second position. The logis again passed through the saws and back, when square tenons on bothends of the log, of definite dimensions in perfect line with each otherand having parallel shoulders, are simultaneously produced.

By the means herein described the machine may be adjusted to anyrequired length of lumber, so as to out tenons on both ends thereof atthe same time. The log can be adjusted to any desired position after ithas been secured to the angle-block, and the saws can be adjusted tomake any desired size of tenon.

The means of driving'the gangs of saws from a prime motor ordriving-pulley is indicated in diagram, Fig. 3, which shows that theswinging of the frame F and the consequent adjustment of the saws a a toor from each other does not change the tension of the. driving-belt,because as much is given out at one point as is taken up at another.

Having now described my invention, what I claim is 1. In atenoning-machine, the combination of gangs of saws or cutters forsimultaneously cutting tenons on both ends of lumber, a timber-carriageprovided with curved seats or saddles, and crescent-sh aped logadjusters and holders mounted to oscillate on said carriage,substantially as described.

2. In a tenoning-machine, the combination of gangs of saws or cuttersfor simultaneously cutting tenons on both ends of lumber, atimber-carriage having curved seats or saddles, a pair of log adjustersand holders mounted to oscillate on said carriage, and a springstop forlocking the adjusters in the desired position, substantially asdescribed.

3. In a tenoning-machine, the combination of gangs of saws or cuttersfor simultaneously cutting tenons on both ends of lumber, atimber-carriage provided with curved seats or saddles, andcrescent-shaped oscillating log adjusters or holders provided withdoggingirons for securing the log in the holders, substantially asdescribed.

4. In a tenoning-machine, the combination of gangs of saws or cuttersfor simultaneously cutting tenons on both ends of lumber, atimber-carriage provided with curved seats or saddles, oscillatingcrescent-shaped log adj usters and holders mounted on said carriage, andangular bolsters 6 as and for the purpose described.

5. In a tenoning-machine, the combination of gangs of saws or cuttersfor cutting tenons on both ends of lumber, a timber-carriage providedwith curved seats or saddles, oscillating crescent-shaped head-blocksprovided with dogging-irons for securing the log to the carriage andadjusting the same, and angular bolsters, as and for the purposedescribed.

6. In a tenoning-machine for simultaneously cutting tenons on both endsof timber, the combination of gangs of saws adjustable with relation tothe path of the timber, and a timber-carriage traversing between thegangs and oscillating supports for the timber, substantially asdescribed.

7. In a tenoning-machine, the combination of gangs of saws or cuttersfor simultaneously cutting tenons on both ends of timber, and atimber-carriage provided with an oscillating support for the timber forpresenting different sides of the timber to the saws, substantially asdescribed.

8. A tenoning-machine embracing the combination of two gangs of saws orcutters adjustable with relation to each other, atimbercarriagetraversing between said gangs of saws, a rack and pinion at each end ofthe carriage for operating the same, seats or saddles upon the carriage,and oscillating timber-supports upon the seats, substantially asdescribed. H

9. In a tenoning-machine having two gangs of saws for simultaneouslycutting tenons on and locking-clamps for holding the frame afixedguide-pulley, and a single driving-belt in the desired position,substantially as deleading from the driving-pulleyaround the scribed.arbor-pulleys and guide-pu11eys,substantially 10. In a tenoning-machinehaving two gangs as described. 5 of saws for simultaneously cuttingtenons on In testimony whereof I affix my signature in I 5 both ends oflumber, the combination of adpresence of two witnesses.

justable swinging frames, a pair of saws ARTHUR HENDEY.

mounted on arbors at opposite ends of the Witnesses: frame and arrangedto cut the shoulders of COLIN A. CHIsHoLM,

10 a tenon as the lumber is passed by said saws, H. F. JOLLY.

